Metallic corner



y 1927' s. A. GALLOWITZ METALLIC CORNER Original Filed Oct. 4. 19-24Patented July 19,1927.

UNITED STATES PATENT OFFICE;

GUSTAVE A. GALLOWITZ, OF NEW YORK, N. Y., ASSIGNOR TO KNY-SCHEERER COR-PORATION OF AMERICA, 01 NEW YORK, N. Y., A CORPORATION OF N EW'YORK.

METALLIC CORNER.

Original application filed October 4, 1924, Serial No. 741,747.. Dividedand this i 4, 1925. Serial No. 73,113.

This application is filed as a divisional application of applicantsapplication Serial #741,747 on his process of forming a metallic cornerand the product, which was filed October l, 192 1, and in whichapplication the examiner required a division by action of December 18,192 1. VAll rights and dates in connection with said parent applicationare therefore claimed in connection with this divisional applicationfiled to cover the product of said parent application in accordance withsaid requirement of the examiner. Y I

This invention relates to an improvement in a metallic corner and thenovelty consists in the adaptation and arrangement of parts as will bemore fully hereinafter pointed out. 7

The welding of a metallic corner is not new and such welding has beendone for many years in the making of metal cabinets and in similarconstruction where the making of a metallic corner becomes necessary.But such corners have been formed in the case of corners formed of angleirons by two of the angle irons being bevelled so as to fit together andthe third being mounted on the upper edges of said joined angle ironswhereby a corner is formed but there is no actual meeting of the threemembers at one point nor is there any homogeneous corner whereby all ofthe members are fused integrally.

There is, therefore, a serious problem of forming a metallic corner soas to have all of the strains radiate from a common point which is theapex of the corner whereby maximum strength may be insured, an increasein the welding area also obtained pro viding the greatest amount offusing and a proper interlocking of the three angle irons or membersmeeting at the corner so as to form a homogeneous corner in which allmembers are fused integrally with an even distribution of heat duringthe welding thereby furnishing a corner which is abso lutely smooth onthe inside and outside without any interruption to the visionparticularly when such corners are used for exhibition cabinets. Myprocess and prod not has solved all of these problems furnishing aprocess whereby three angle irons or metallic members can be weldedtogether by the notching or cutting of only two so that the third isintact thereby furnishingthe greatest strength to said corner. 7

Referring to the drawings Figure l is a application filed Decemberperspective of my metallic corner.-, Figure 2 is a perspective of oneangle iron out readyfor use. Figure 3 is a perspective of the secondangle iron out ready for use. Figure 4 is a bottom plan view of thecorner shown in Figure 1., I

In the drawings 5 is an angle iron having a portion stamped or died outat .11 and having a pointed portion 15 with a bevelled I face 12 and abevelled face 13 cut at the same time. A second angleiron 6 also has aportion stamped or died out at 8 and having a pointed portion 16 with abevelled face 7 9 and a bevelled face 10 cut at the same time. A thirdangle iron 7 having a square end is adapted to fit the stamped out parts8 of angle iron 6 and 11 of angle iron 5 as bevelled edges 10 and 12 areplaced together as shown'in Figures 1 and 4.

-1 first stamp or die out angle irons 5 and 6 in the length requiredsimultaneously forming pointed portions 15 and 16 respectively and twobevelled faces 12 and 13 and the beveled faces 9 and 10 respectively.

These stamped angle irons 5 and 6 are then placed with the bevellededges 12 and 7 1O togetheras shown in Figures 1 and 4 and the thirdangle iron 7 is placed as there shown so that the bevelled'edges 9 and13 contact with the inside face of said angle iron 7 The angle irons 5,6 and 7 will then be rigidly secured together in the positions as shownin Figure 1 whereupon the welding heat will be applied in the usual wellknown manner on the inside of said corner as shown in Figure 1 togetherwith the welding stick customarily used in such welding operations andas the heat is applied and the welding stick is fused an opening 14: atthe very apex of the corner will be thereby filled together with thespace between the bevelled edges 9 and 13 and the face of 7, and as thewelding process proceeds as usual the metals of 5, 6 and 7 together withthe metal of the weldin stick Will all be fused, the heat of the wel ingbeing equally fused between allthree angle irons 5, 6 and 7 which meetat the common apex thereby effecting an even heating and fusing of allparts as the Welding heat can be applied at Welding heatrand weld'ingstick can be ap plied to the groove formed by bevelled-faces 10 and 12and the meeting edges o't o, 6 and 7 applyi'ngai'd' Welding-heat iintilthe'fiis ing of angle iro1is5f6and7 iscOmplet'ed whereby a 'metalliccorner which iss iiootli faced'in'side'andout is l"ormed.

The 'l'ormation of perfectly Welded corner as described may be" appliedto suitable metal pieces of any dsi'idleiigth and a serie'sof saidcorners formed as may hede sired whereby a museum cabinet 'o'f'sufficient' length, breadth and depth may be formed for the exhibition of 1the larges specimens, 'said metal "frthe large plates'of glassii'ecessary to furnish a clearvlsio'n to the observer. The construction'of corners of such strength permits the use'of not only comparativelynarroxi" angle irons but makes it possible to use angle irons of mediumWeight (ii thickness the construction of said corners furnishingsuflicient strength so that e v en la rge syyipginq do may carriedbyifij mesebiis r ie efi of corners inside in" "meantime 'v'iiith" 1i1yprocess.

I claim:

1'. Ahw product comprisinga metallic welded corner being absolutelysmooth inside and outside and composed of three angle irons positiyelyinterlocked from the a ex of the corner; the angle iron at the'a'pelx"strains the "corner being uncut and the radiatingftroni s'aid apex.

2.'A new product comprising a metallic Welded cornenheing absolutelysmoot'l'iin side andoutside and composed of three angle irons positivelyinterlocked "from the apex ofthe corner. I

V A new product comprising a metallic Welded corner b'ein'g ahsolutely-sniooth in' side and outsideandcomposedof "two notched angle irons anda third angle iron uncut and 'l'ittingthe first two to form said Col11er- 1 I .i I 1Hi In testimony whereof I aflix mysignaturei GUSTAVE A.oALLow-rrz;

